<h2>题目编号 : 76</h2>
<div style="color:#666;font-size:80%;">13 August 2004</div><br />
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<p>It is possible to write five as a sum in exactly six different ways:</p>
<p style='margin-left:50px;'>4 + 1<br />
3 + 2<br />
3 + 1 + 1<br />
2 + 2 + 1<br />
2 + 1 + 1 + 1<br />
1 + 1 + 1 + 1 + 1</p>
<p>How many different ways can one hundred be written as a sum of at least two positive integers?</p>

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